'amilib: migrate to PyAmi-4'


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Tools/PyUtils/trunk@538932 4525493e-7705-40b1-a816-d608a930855b
'more pyami-4 fixes'


git-svn-id: svn+ssh://svn.cern.ch/reps/atlasoff/Tools/PyUtils/trunk@539108 4525493e-7705-40b1-a816-d608a930855b